Unknown mini-bike: a one-off?

This beautiful little "kid's bike" is no toy. Can anyone guess what
it is? The photo is from a card someone sent me, and was evidently
taken in the late 1940's or 1950's in France. The teles and primary
chain and clutch suggest this was a serious build, not a toy. RZ
means nothing to me (outside modern Yams), so it may just be the
fabricator's initials. Have a look: http://www.oldstox.com/images/Little motorcycle.jpg

 

Nice but that primary drive chain is just waiting to rip the kids foot off.

Think of the chilldreen....

 

Does no one think of the children ?

 

Er, why is it late '40s/50s ?
Hairstyle?
Will wait for Champs to tell us about his fathers shop

 

No idea at all, but it's a great pic.

 

That's a little cracker. Cut-down Norton frame, don't know the engine,
but what a labour of love it must have been.

 

Pah. Children were real children in those days; perfectly sanguine about
the risk of maiming and disfigurement.

 

Or the ankle-burning exhaust ?

Paul.

 

Or the ankle-burning exhaust ?

He must has strange legs then, where his ankles are below the soles of his
feet.

He really shouldn't be wearing sandals though, it's not a scooter after all.

--
Beav

VN 750
Zed 1000
OMF# 19

 

Yes, but can anyone identify the engine?
And would the builder have cut down a Norton frame to accommodate a
tint 2-stroke single? Help?

 

Yep. Two a penny they were, right up until they were all used up,
sometime in the late 80s and they started fetching stupid money.